Animal Kingdom Question 743
Question: Hydra is
[CPMT 1993; RPMT 1999, 2000; Pb. PMT 2000]
Options:
A) Triploblastic, radial symmetry and acoelomate
B) Triploblastic, radial symmetry and coelomate
C) Diploblastic, radial symmetry and acoelomate
D) Diploblastic, radial symmetry and coelomate
Show Answer
Answer:
Correct Answer: C
Solution:
Hydra belongs to class hydrozoa of Cnidarians. Cnidarians have radial symmetry, diploblastic body plan.
They are acoelomate and have a central digestive cavity called as a gastrovascular cavity.
It has a single opening to serve as both mouth and anus. Thus, the correct answer is option C.